Which statement is true about the use of Trusted Network Context and Roles?

Which statement is true about the use of Trusted Network Context and Roles?

A.
Trusted Network Context and Roles does not require RACF.

B.
Trusted Network Context and Roles allows a DBA to create and manage objects without
ownership.

C.
Roles revoked from an authorization ID will trigger cascade revocation.

D.
Roles cannot own objects.